static/editor.js - compiler-explorer - Rivoreo Source Code Repositories

 // Copyright (c) 2012-2016, Matt Godbolt
 //
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 //     * Redistributions of source code must retain the above copyright notice,
 //       this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above copyright
 //       notice, this list of conditions and the following disclaimer in the
 //       documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.

 define(function (require) {
     "use strict";
     var CodeMirror = require('codemirror');
     var _ = require('underscore');
     var colour = require('colour');
     var Toggles = require('toggles');
     var compiler = require('compiler');
     var loadSaveLib = require('loadSave');

     require('codemirror/mode/clike/clike');
     require('codemirror/mode/d/d');
     require('codemirror/mode/go/go');
     require('codemirror/mode/rust/rust');

     var loadSave = new loadSaveLib.LoadSave();

     function Editor(hub, state, container, lang, defaultSrc) {
         var self = this;
         this.id = state.id || hub.nextId();
         this.container = container;
         this.domRoot = container.getElement();
         this.domRoot.html($('#codeEditor').html());
         this.eventHub = hub.createEventHub();

         this.widgetsByCompiler = {};
         this.asmByCompiler = {};
         this.options = new Toggles(this.domRoot.find('.options'), state.options);
         this.options.on('change', _.bind(this.onOptionsChange, this));

         var cmMode;
         switch (lang.toLowerCase()) {
             default:
                 cmMode = "text/x-c++src";
                 break;
             case "c":
                 cmMode = "text/x-c";
                 break;
             case "rust":
                 cmMode = "text/x-rustsrc";
                 break;
             case "d":
                 cmMode = "text/x-d";
                 break;
             case "go":
                 cmMode = "text/x-go";
                 break;
         }

         this.editor = CodeMirror.fromTextArea(this.domRoot.find("textarea")[0], {
             lineNumbers: true,
             matchBrackets: true,
             useCPP: true,
             mode: cmMode
         });

         if (state.source) {
             this.editor.setValue(state.source);
         } else if (defaultSrc) {
             this.editor.setValue(defaultSrc);
         }

         // With reference to "fix typing '#' in emacs mode"
         // https://github.com/mattgodbolt/gcc-explorer/pull/131
         this.editor.setOption("extraKeys", {
             "Alt-F": false
         });

         // We suppress posting changes until the user has stopped typing by:
         // * Using _.debounce() to run emitChange on any key event or change
         //   only after a delay.
         // * Only actually triggering a change if the document text has changed from
         //   the previous emitted.
         this.lastChangeEmitted = null;
         var ChangeDebounceMs = 500;
         this.debouncedEmitChange = _.debounce(function () {
             if (self.options.get().compileOnChange) self.maybeEmitChange();
         }, ChangeDebounceMs);
         this.editor.on("change", _.bind(function () {
             this.debouncedEmitChange();
             this.updateState();
         }, this));
         this.editor.on("keydown", _.bind(function () {
             // Not strictly a change; but this suppresses changes until some time
             // after the last key down (be it an actual change or a just a cursor
             // movement etc).
             this.debouncedEmitChange();
         }, this));

         // A small debounce used to give multiple compilers a chance to respond
         // before unioning the colours and updating them. Another approach to reducing
         // flicker as multiple compilers update is to track those compilers which
         // are busy, and only union/update colours when all are complete.
         var ColourDebounceMs = 200;
         this.debouncedUpdateColours = _.debounce(function (colours) {
             self.updateColours(colours);
         }, ColourDebounceMs);

         function resize() {
             var topBarHeight = self.domRoot.find(".top-bar").outerHeight(true);
             self.editor.setSize(self.domRoot.width(), self.domRoot.height() - topBarHeight);
             self.editor.refresh();
         }

         this.domRoot.find('.load-save').click(_.bind(function () {
             loadSave.run(_.bind(function (text) {
                 this.editor.setValue(text);
                 this.maybeEmitChange();
             }, this));
         }, this));

         container.on('resize', resize);
         container.on('open', function () {
             self.eventHub.emit('editorOpen', self.id);
         });
         container.on('destroy', function () {
             self.eventHub.unsubscribe();
             self.eventHub.emit('editorClose', self.id);
         });
         container.setTitle(lang + " source #" + self.id);
         this.container.layoutManager.on('initialised', function () {
             // Once initialized, let everyone know what text we have.
             self.maybeEmitChange();
         });

         this.eventHub.on('compilerOpen', this.onCompilerOpen, this);
         this.eventHub.on('compilerClose', this.onCompilerClose, this);
         this.eventHub.on('compileResult', this.onCompileResponse, this);

         var compilerConfig = compiler.getComponent(this.id);
         this.container.layoutManager.createDragSource(
             this.domRoot.find('.btn.add-compiler'), compilerConfig);
     }

     Editor.prototype.maybeEmitChange = function (force) {
         var source = this.getSource();
         if (!force && source == this.lastChangeEmitted) return;
         this.lastChangeEmitted = this.getSource();
         this.eventHub.emit('editorChange', this.id, this.lastChangeEmitted);
     };

     Editor.prototype.updateState = function () {
         this.container.setState({
             id: this.id,
             source: this.getSource(),
             options: this.options.get()
         });
     };

     Editor.prototype.getSource = function () {
         return this.editor.getValue();
     };

     Editor.prototype.onOptionsChange = function (before, after) {
         this.updateState();
         // TODO: bug when:
         // * Turn off auto.
         // * edit code
         // * change compiler or compiler options (out of date code is used)
         if (after.compileOnChange && !before.compileOnChange) {
             // If we've just enabled "compile on change"; forcibly send a change
             // which will recolourise as required.
             this.maybeEmitChange(true);
         } else if (before.colouriseAsm !== after.colouriseAsm) {
             // if the colourise option has been toggled...recompute colours
             this.numberUsedLines();
         }
     };

     function makeErrorNode(text, compiler) {
         var clazz = "error";
         if (text.match(/^warning/)) clazz = "warning";
         if (text.match(/^note/)) clazz = "note";
         var node = $('<div class="' + clazz + ' inline-msg"><span class="icon">!!</span><span class="compiler">: </span><span class="msg"></span></div>');
         node.find(".msg").text(text);
         node.find(".compiler").text(compiler);
         return node[0];
     }

     function parseLines(lines, callback) {
         var re = /^\/tmp\/[^:]+:([0-9]+)(:([0-9]+))?:\s+(.*)/;
         $.each(lines.split('\n'), function (_, line) {
             line = line.trim();
             if (line !== "") {
                 var match = line.match(re);
                 if (match) {
                     callback(parseInt(match[1]), match[4].trim());
                 } else {
                     callback(null, line);
                 }
             }
         });
     }

     Editor.prototype.removeWidgets = function (widgets) {
         var self = this;
         _.each(widgets, function (widget) {
             self.editor.removeLineWidget(widget);
         });
     };

     Editor.prototype.numberUsedLines = function () {
         var result = {};
         // First, note all lines used.
         _.each(this.asmByCompiler, function (asm) {
             _.each(asm, function (asmLine) {
                 if (asmLine.source) result[asmLine.source - 1] = true;
             });
         });
         // Now assign an ordinal to each used line.
         var ordinal = 0;
         _.each(result, function (v, k) {
             result[k] = ordinal++;
         });

         this.debouncedUpdateColours(this.options.get().colouriseAsm ? result : []);
     };

     Editor.prototype.updateColours = function (colours) {
         colour.applyColours(this.editor, colours);
         this.eventHub.emit('colours', this.id, colours);
     };

     Editor.prototype.onCompilerClose = function (compilerId) {
         this.removeWidgets(this.widgetsByCompiler[compilerId]);
         delete this.widgetsByCompiler[compilerId];
         delete this.asmByCompiler[compilerId];
         this.numberUsedLines();
     };

     Editor.prototype.onCompilerOpen = function () {
         // On any compiler open, rebroadcast our state in case they need to know it.
         this.maybeEmitChange(true);
     };

     Editor.prototype.onCompileResponse = function (compilerId, compiler, result) {
         var output = (result.stdout || "") + (result.stderr || "");
         var self = this;
         this.removeWidgets(this.widgetsByCompiler[compilerId]);
         var widgets = [];
         parseLines(output, function (lineNum, msg) {
             if (lineNum) {
                 var widget = self.editor.addLineWidget(
                     lineNum - 1,
                     makeErrorNode(msg, compiler.name),
                     {coverGutter: false, noHScroll: true});
                 widgets.push(widget);
             }
         });
         this.widgetsByCompiler[compilerId] = widgets;
         this.asmByCompiler[compilerId] = result.asm;
         this.numberUsedLines();
     };

     return {
         Editor: Editor,
         getComponent: function (id) {
             return {
                 type: 'component',
                 componentName: 'codeEditor',
                 componentState: {id: id},
                 isClosable: false
             };
         },
         getComponentWith: function (id, source, options) {
             return {
                 type: 'component',
                 componentName: 'codeEditor',
                 componentState: {id: id, source: source, options: options},
                 isClosable: false
             };
         }
     };
 });
	// Copyright (c) 2012-2016, Matt Godbolt
	//
	// All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are met:
	//
	// * Redistributions of source code must retain the above copyright notice,
	// this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above copyright
	// notice, this list of conditions and the following disclaimer in the
	// documentation and/or other materials provided with the distribution.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
	// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	// POSSIBILITY OF SUCH DAMAGE.

	define(function (require) {
	"use strict";
	var CodeMirror = require('codemirror');
	var _ = require('underscore');
	var colour = require('colour');
	var Toggles = require('toggles');
	var compiler = require('compiler');
	var loadSaveLib = require('loadSave');

	require('codemirror/mode/clike/clike');
	require('codemirror/mode/d/d');
	require('codemirror/mode/go/go');
	require('codemirror/mode/rust/rust');

	var loadSave = new loadSaveLib.LoadSave();

	function Editor(hub, state, container, lang, defaultSrc) {
	var self = this;
	this.id = state.id \|\| hub.nextId();
	this.container = container;
	this.domRoot = container.getElement();
	this.domRoot.html($('#codeEditor').html());
	this.eventHub = hub.createEventHub();

	this.widgetsByCompiler = {};
	this.asmByCompiler = {};
	this.options = new Toggles(this.domRoot.find('.options'), state.options);
	this.options.on('change', _.bind(this.onOptionsChange, this));

	var cmMode;
	switch (lang.toLowerCase()) {
	default:
	cmMode = "text/x-c++src";
	break;
	case "c":
	cmMode = "text/x-c";
	break;
	case "rust":
	cmMode = "text/x-rustsrc";
	break;
	case "d":
	cmMode = "text/x-d";
	break;
	case "go":
	cmMode = "text/x-go";
	break;
	}

	this.editor = CodeMirror.fromTextArea(this.domRoot.find("textarea")[0], {
	lineNumbers: true,
	matchBrackets: true,
	useCPP: true,
	mode: cmMode
	});

	if (state.source) {
	this.editor.setValue(state.source);
	} else if (defaultSrc) {
	this.editor.setValue(defaultSrc);
	}

	// With reference to "fix typing '#' in emacs mode"
	// https://github.com/mattgodbolt/gcc-explorer/pull/131
	this.editor.setOption("extraKeys", {
	"Alt-F": false
	});

	// We suppress posting changes until the user has stopped typing by:
	// * Using _.debounce() to run emitChange on any key event or change
	// only after a delay.
	// * Only actually triggering a change if the document text has changed from
	// the previous emitted.
	this.lastChangeEmitted = null;
	var ChangeDebounceMs = 500;
	this.debouncedEmitChange = _.debounce(function () {
	if (self.options.get().compileOnChange) self.maybeEmitChange();
	}, ChangeDebounceMs);
	this.editor.on("change", _.bind(function () {
	this.debouncedEmitChange();
	this.updateState();
	}, this));
	this.editor.on("keydown", _.bind(function () {
	// Not strictly a change; but this suppresses changes until some time
	// after the last key down (be it an actual change or a just a cursor
	// movement etc).
	this.debouncedEmitChange();
	}, this));

	// A small debounce used to give multiple compilers a chance to respond
	// before unioning the colours and updating them. Another approach to reducing
	// flicker as multiple compilers update is to track those compilers which
	// are busy, and only union/update colours when all are complete.
	var ColourDebounceMs = 200;
	this.debouncedUpdateColours = _.debounce(function (colours) {
	self.updateColours(colours);
	}, ColourDebounceMs);

	function resize() {
	var topBarHeight = self.domRoot.find(".top-bar").outerHeight(true);
	self.editor.setSize(self.domRoot.width(), self.domRoot.height() - topBarHeight);
	self.editor.refresh();
	}

	this.domRoot.find('.load-save').click(_.bind(function () {
	loadSave.run(_.bind(function (text) {
	this.editor.setValue(text);
	this.maybeEmitChange();
	}, this));
	}, this));

	container.on('resize', resize);
	container.on('open', function () {
	self.eventHub.emit('editorOpen', self.id);
	});
	container.on('destroy', function () {
	self.eventHub.unsubscribe();
	self.eventHub.emit('editorClose', self.id);
	});
	container.setTitle(lang + " source #" + self.id);
	this.container.layoutManager.on('initialised', function () {
	// Once initialized, let everyone know what text we have.
	self.maybeEmitChange();
	});

	this.eventHub.on('compilerOpen', this.onCompilerOpen, this);
	this.eventHub.on('compilerClose', this.onCompilerClose, this);
	this.eventHub.on('compileResult', this.onCompileResponse, this);

	var compilerConfig = compiler.getComponent(this.id);
	this.container.layoutManager.createDragSource(
	this.domRoot.find('.btn.add-compiler'), compilerConfig);
	}

	Editor.prototype.maybeEmitChange = function (force) {
	var source = this.getSource();
	if (!force && source == this.lastChangeEmitted) return;
	this.lastChangeEmitted = this.getSource();
	this.eventHub.emit('editorChange', this.id, this.lastChangeEmitted);
	};

	Editor.prototype.updateState = function () {
	this.container.setState({
	id: this.id,
	source: this.getSource(),
	options: this.options.get()
	});
	};

	Editor.prototype.getSource = function () {
	return this.editor.getValue();
	};

	Editor.prototype.onOptionsChange = function (before, after) {
	this.updateState();
	// TODO: bug when:
	// * Turn off auto.
	// * edit code
	// * change compiler or compiler options (out of date code is used)
	if (after.compileOnChange && !before.compileOnChange) {
	// If we've just enabled "compile on change"; forcibly send a change
	// which will recolourise as required.
	this.maybeEmitChange(true);
	} else if (before.colouriseAsm !== after.colouriseAsm) {
	// if the colourise option has been toggled...recompute colours
	this.numberUsedLines();
	}
	};

	function makeErrorNode(text, compiler) {
	var clazz = "error";
	if (text.match(/^warning/)) clazz = "warning";
	if (text.match(/^note/)) clazz = "note";
	var node = $('<div class="' + clazz + ' inline-msg"><span class="icon">!!</span><span class="compiler">: </span><span class="msg"></span></div>');
	node.find(".msg").text(text);
	node.find(".compiler").text(compiler);
	return node[0];
	}

	function parseLines(lines, callback) {
	var re = /^\/tmp\/[^:]+:([0-9]+)(:([0-9]+))?:\s+(.*)/;
	$.each(lines.split('\n'), function (_, line) {
	line = line.trim();
	if (line !== "") {
	var match = line.match(re);
	if (match) {
	callback(parseInt(match[1]), match[4].trim());
	} else {
	callback(null, line);
	}
	}
	});
	}

	Editor.prototype.removeWidgets = function (widgets) {
	var self = this;
	_.each(widgets, function (widget) {
	self.editor.removeLineWidget(widget);
	});
	};

	Editor.prototype.numberUsedLines = function () {
	var result = {};
	// First, note all lines used.
	_.each(this.asmByCompiler, function (asm) {
	_.each(asm, function (asmLine) {
	if (asmLine.source) result[asmLine.source - 1] = true;
	});
	});
	// Now assign an ordinal to each used line.
	var ordinal = 0;
	_.each(result, function (v, k) {
	result[k] = ordinal++;
	});

	this.debouncedUpdateColours(this.options.get().colouriseAsm ? result : []);
	};

	Editor.prototype.updateColours = function (colours) {
	colour.applyColours(this.editor, colours);
	this.eventHub.emit('colours', this.id, colours);
	};

	Editor.prototype.onCompilerClose = function (compilerId) {
	this.removeWidgets(this.widgetsByCompiler[compilerId]);
	delete this.widgetsByCompiler[compilerId];
	delete this.asmByCompiler[compilerId];
	this.numberUsedLines();
	};

	Editor.prototype.onCompilerOpen = function () {
	// On any compiler open, rebroadcast our state in case they need to know it.
	this.maybeEmitChange(true);
	};

	Editor.prototype.onCompileResponse = function (compilerId, compiler, result) {
	var output = (result.stdout \|\| "") + (result.stderr \|\| "");
	var self = this;
	this.removeWidgets(this.widgetsByCompiler[compilerId]);
	var widgets = [];
	parseLines(output, function (lineNum, msg) {
	if (lineNum) {
	var widget = self.editor.addLineWidget(
	lineNum - 1,
	makeErrorNode(msg, compiler.name),
	{coverGutter: false, noHScroll: true});
	widgets.push(widget);
	}
	});
	this.widgetsByCompiler[compilerId] = widgets;
	this.asmByCompiler[compilerId] = result.asm;
	this.numberUsedLines();
	};

	return {
	Editor: Editor,
	getComponent: function (id) {
	return {
	type: 'component',
	componentName: 'codeEditor',
	componentState: {id: id},
	isClosable: false
	};
	},
	getComponentWith: function (id, source, options) {
	return {
	type: 'component',
	componentName: 'codeEditor',
	componentState: {id: id, source: source, options: options},
	isClosable: false
	};
	}
	};
	});